Add missing TTY wakeup to rpmsg_tty

marcel-hamer · fourmone · commit 2c0f850015fe · 2021-02-02T11:32:34.000+01:00
The rpmgs_tty driver is missing the call to tty_port_tty_wakeup() after a
successful writing of data.

A line discipline that is configured for the RPMSG tty will as such never
receive the write_wakeup call when space is available for further data.

Signed-off-by: Marcel Hamer &lt;marcel@solidxs.nl&gt;
Change-Id: I51eb3c102a0adb9344115324ecff74e08e48918a
diff --git a/drivers/rpmsg/rpmsg_tty.c b/drivers/rpmsg/rpmsg_tty.c
@@ -147,6 +147,8 @@ static int rpmsg_tty_write(struct tty_struct *tty, const unsigned char *buf,
 		}
 	} while (count > 0);
 
+	tty_port_tty_wakeup(cport->port);
+
 	return total;
 }
 

Original file line number	Diff line number	Diff line change
`@@ -147,6 +147,8 @@ static int rpmsg_tty_write(struct tty_struct tty, const unsigned char buf,`
`147`	`147`	`}`
`148`	`148`	`} while (count > 0);`
`149`	`149`
	`150`	`+ tty_port_tty_wakeup(cport->port);`
	`151`	`+`
`150`	`152`	`return total;`
`151`	`153`	`}`
`152`	`154`